A corpora



0a. 23 ,1923. Re. 15,703

' k .1. G. LEHMAN TEMPERATURE CONTROL OF KETTLES BY ZONES Original Filed Sept. 27 1919 Reissued Oct. 23, 1923. i

. v a a 5 711 Joisuv GEORGE Lnmvmmyor isn'rnnnnmu, PENNSYLVANIA, ALSSIG-NOR To BETHLEHEM FOUNDRY car-MACHINE comrm,;on BETHLEHEIQLfPENNSYLVANIA, A conroaa- QTI'ON or PENNSYLVANIA.

mnmrnnurpan foon'rnon or xn'rT Es inrzomis.

oi i inai Ito; 13075 6,, "d t d m m 21 1e'22, filed S ep temherifl, 1 91a,, Serial No. 321007;"; New l Reissue Patentlio; 15,665,.daitedf3'u1y 31,1923, filed October 12, 1922,' Seria1 No. 5944170,v Divided and this application for reissue filedlnlyfi, 19223 $eria1y1o..654,497. 1 i v martianemgm m;

' M Aiacitizen'of theUnited States, residing ati24=4 E Market Street, Bethlehem, .inithe countyof Northampton and State ot Pennsylvania, have invented a certainhnew anduseful Temperature Control of" Kettles Zones, of which the following" is a specifica-i tion.

J My:

cooling instants, to the heating or of the walls of kettles and! other re-,

ceptacles, interidedgfoi, the heat-treatment of liquids, particularly in carrying out v chemical processes. 1

ingfluid throughout different layers, belts or zones of a.,kettle. I h v A1 zfiurther purpose ;i;szto provide for heating onepart of av liquid under treatment, at the same time that the heat is withdrawn from another part, "or that the other part" thereof is cooled, so as to give differential temperatures to the several partsthereof.

A further purpose of my invention is toprovide a continuous passage, preferably a pipe coil, within the walls of a container for the purpose of applying heating or cool-" ing fluid therein, and! to tap the passage at intervals by inlet and outlet connections selected as. may be desired so as to permit ap; plication' of fluids to apart only of the passage. I I

Further'purposes will appearin the specification and in the claims.

This application is a division of ap plication, Serial Number 594,170 for reissue of my Patent, No. 1,407.666 for temperature control of kettles by zones. I

I have preferred to illustrate my inven' tion by but one general form, selecting a form which is practical, efiicient'and inexpensive and which at the same time well illustrates the "principles of my invention. 7

Figurel is a horizontal section showing one arrangement of connections jforthe prace ticeof my invention.

{Figure 2' is a vert cal broken section takenupon line,2 2 of Figure 1 Figure 3 is abroken vertical section uponline of Figure 1.

he 'urpose f my invention is tojprovidej fo -different applications of, heating or cool- -forme irom the bottom can be used as needed.

" Figure is a horizontal section showing;

a second arrangement of connections; v

Figure-5 is a broken vertical ti up n: 1. nv gure t."

"In the drawings,'s1m11ar numerals indi- 'eatelikeparts. v l p difierentfllines of manufacture. where heat treatment of liquids is required,

1 many itlisdesirable to have theheat offthe liquid under complete-control, and my invention is directed tojj rapid, simpleand effective con? 1 trol, differentiating between different layers or levels'of the'liquidbein treated.

The container 6, generica ly calleda kettle, is provided with a continuous passage within its'walls, shown as pipes-7, in order that a fiuid may be passed through them for the purpose'of heating or coolin the wallsof or cooling the contents.

the kettle, and thus correspon ingly heating.

LWithout' interfering with the use ofthe entirelength of pipe 7 as'one belt for continuous How of liquid, 1 provide taps by which the passage may be arranged in groups of turns or belts of-which'I show three, at 8,

9 and 10, the passage being tapped at intervals to provide inlets and outlets seen in Figures 1-3. t

I In both of'the; forms, that shown'in Figures 13 and that shown in Figures 4 and 5, the passage has inlets' ll, 12 and 13 of which '12 and 13 forms the taps at desired intervals b which the limits of the belts are Each of these inlets connects through a valve 14 with a plurality of general sources of fluid supply 15, 15', 15 each available for any of the inlets and cut ofl from them vselectively by the valves 14.

'Ihetwo forms shown difi'er inthat, in the firstform,.separate outlets are provided also at 19,, and 21., one for each belt; whereas in the form shown in Figures 4 and 5 a single outlet 21 only is provided.

The outlets connect with the main discharge pipe 22 and may be controlled to be open thereto or cut oil? therefrom by valves 14, one in each outlet.v s

In the second form it is necessary to use the lower belt whenever any of the belts are used, .but one,-two or three belts ranging tainer having fluid passages in-thesolid are not ordinarily necessary. U 1-; The general sources of-supply=can-be outlet form is'ordinarily'n'ot objectionable and the additional outlets of the first form suited innumber and character to the needs of the particular installation, with or without separate outlets. 1 l

When the kettle has been filled ith the liquid to be treated heatingor cooling fluids can be supplied to any of the belts desired, together or with different temperatures in adjoinin belts,

cooling fluids.

ters Patent is: a I i,

1. In a device for treating liquids, a conwall's the reo f, adapted toform a continuous passagaand a pluralityof pointsfof'inlet to and an outlet from said passage s, all' passing through the walls of the kettle at different points, iiiconibination with "con-.1

trolled fluid supply for theinlets whereby fluid'can be passed from any inlet to the outlet, thus passing through all ora portion only of saidpassa'ges.

tainer having continuous spirally arranged piping in the solid Walls thereof surroundtapping I the piping I having a continuous spiral Having thus described my invention, what I claim as new and desire to secu're by Let- 2. In a device for treatingliquids, a con-' intervals and passing through the Walls at I different points and an outlet therefor at one-end of the piping, whereby fluid can be applied through all or a part only of said Plpm 3. In ardevicefor treating: liquids, a container having continuous ,spirally'arranged piping in the solid walls'thereof surrounding the container, in combination with separate and separately controlled inlets and outlets at intervals, passing through the walls at different points, where by fluid can Vbe-a-pplied through all or any section-of saidpiping. giving great flexibility to I .the appication of the heat treating: and

4. In a deviceior treating liquids, an container having solid walls and wlth nthe walls let connection at the bottom and separately the: inlets.

1 a device or r a n liqu ds, a 99 miner ha n qli W l and Within the Walls having a continuous spiral passage, in combination with inlet connection'at the top ofthe passage and at an intermediate point between the top and the bottom and outlet connection at the bottom and separately controlled means for inserting the inlets and from any of a different sources of fluid sup 1y. j

JOHN GEORGyLEHMA N, \Vitness; V i

C. DANIEL FRIEnnLr.

vsloiltrolled m an f inse tin fl id t n of passage,in com+ binationwith inlet connection at theito'p of the passage and at anintermediate point between the'top andthe bottom and outfluid at an-yof plurality oi 

